Modern pollen data-MT.xlsx

A total of 62 moss samples were collected from elevation ranging from 743 m and 3551 m along the Zamo road in southwest China. 54 sites were located in Galongqu Valley and Jinzhuqu Valley, which are tributaries of the Yarlung Tsangpo River. Additionally, there were 8 sampling sites distributed along the main channel of the Yarlung Tsangpo River.The pollen samples were processed by heavy liquid separation with specific gravity of 2.0-2.2. Pollen samples were examined using a Zeiss microscope at magnifications of 400× and 630×. Of these, 61 samples were counted more than 500 grains. As some samples were collected in close proximity to Urticaceae plants, indicating strong human activity in this region, and the sampling period coincided with the flowering season of Urticaceae plants, it greatly influenced the pollen assemblages of these samples with a high proportion of Urticaceae pollen. Therefore, we excluded Urticaceae when calculating the percentages of terrestrial pollen taxa. The table lists the 26 main species types.